A versatile partial electron yield detector with large acceptance angle and well-defined threshold energy and gain

2011 ◽  
Vol 184 (8-10) ◽  
pp. 483-486 ◽  
Author(s):  
F. Blobner ◽  
S. Neppl ◽  
P. Feulner
Keyword(s):  
Threshold Energy ◽  
Acceptance Angle ◽  
Electron Yield ◽  
Large Acceptance

scholarly journals X-ray fluorescence analysis of metal distributions in cryogenic biological samples using large-acceptance-angle SDD detection and continuous scanning at the Hard X-ray Micro/Nano-Probe beamline P06 at PETRA III

2020 ◽  
Vol 27 (1) ◽  
pp. 60-66 ◽  
Author(s):  
C. Rumancev ◽  
A. Gräfenstein ◽  
T. Vöpel ◽  
S. Stuhr ◽  
A. R. von Gundlach ◽  
...  
Keyword(s):  
Detection System ◽  
Accurate Determination ◽  
Fluorescence Analysis ◽  
Detection Sensitivity ◽  
Acceptance Angle ◽  
Fluorescence Detector ◽  
High Count ◽  
X Ray ◽  
Continuous Scanning ◽  
Large Acceptance

A new Rococo 2 X-ray fluorescence detector was implemented into the cryogenic sample environment at the Hard X-ray Micro/Nano-Probe beamline P06 at PETRA III, DESY, Hamburg, Germany. A four sensor-field cloverleaf design is optimized for the investigation of planar samples and operates in a backscattering geometry resulting in a large solid angle of up to 1.1 steradian. The detector, coupled with the Xspress 3 pulse processor, enables measurements at high count rates of up to 106 counts per second per sensor. The measured energy resolution of ∼129 eV (Mn Kα at 10000 counts s−1) is only minimally impaired at the highest count rates. The resulting high detection sensitivity allows for an accurate determination of trace element distributions such as in thin frozen hydrated biological specimens. First proof-of-principle measurements using continuous-movement 2D scans of frozen hydrated HeLa cells as a model system are reported to demonstrate the potential of the new detection system.

Design of large acceptance angle polarizing beam splitter for laser-based displays

2011 ◽  
Vol 7 (4) ◽  
pp. 256-259
Author(s):  
Zhe Liu ◽  
Zhi-ping Cai ◽  
Sha-ling Huang ◽  
Yi-kun Bu
Keyword(s):  
Beam Splitter ◽  
Acceptance Angle ◽  
Large Acceptance ◽  
Polarizing Beam Splitter

Polarizing grating color filters with large acceptance angle and high transmittance

2015 ◽  
Vol 55 (1) ◽  
pp. 70 ◽  
Author(s):  
Zhenyue Luo ◽  
Guiju Zhang ◽  
Ruidong Zhu ◽  
Yating Gao ◽  
Shin-Tson Wu
Keyword(s):  
Acceptance Angle ◽  
Large Acceptance ◽  
Color Filters
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